How do you set timeout in expect?
Automate User Processes With Expect Execute this as shown below. In case, if you have written the code without interact command, then the script would exit immediately after sending the string “23\r”. Interact command does the control, hands over the job to the addition process, and produces the expected result.
What is timeout in expect?
The default timeout for expect is 10 seconds according to its manpage. To change it to 120 seconds, before spawn ssh [email protected]$HOST , add the line set timeout 120.
What is spawn expect?
The spawn command is used to start a script or a program like the shell, FTP, Telnet, SSH, SCP, and so on. The remaining lines are the Expect script that interacts with our shell script. The last line if the end of file which means the end of the interaction.
What is Exp_continue in expect?
The command exp_continue allows expect itself to continue executing rather than returning as it normally would. By default exp_continue resets the timeout timer.
How do I run an expect script?
1. Execute expect script from the command line using -c option. expect also also allows you to execute it directly in the command line using -c option as shown below. Once you run the above script, it waits for the newline(\n) and upon pressing the enter key, it will print the message “pressed enter” and exits.
How do I run an expect script in bash?
How to Use Expect In Bash Script
- Step 1 : Create a new file. vi expectcmd.
- Step 2 : Copy and paste below given content in file.
- Step 3: Make your file executable by owner of file , run the given below command.
- Step 4: Give commands as argument along with expectcmd script.
How do I run an Expect script in bash?
What is Expect in TCL?
Expect is an extension to the Tcl scripting language written by Don Libes. The program automates interactions with programs that expose a text terminal interface. Expect, originally written in 1990 for the Unix platform, has since become available for Microsoft Windows and other systems.
What is Expect package in Linux?
The Linux expect command takes script writing to an entirely new level. Instead of automating processes, it automates running and responding to other scripts. In other words, you can write a script that asks how you are and then create an expect script that both runs it and tells it that you’re ok.
What is expect in TCL?
